This paper describes an identification method of the dynamic characteristics in consideration of the dependency of amplitude and frequency, followed by the vibration analysis of rigid body supported with hydraulic engine mounts. At first the parameters to describe the dynamic characteristics of hydraulic engine mount, unable to be measured directly, are predicted. The identified results agree well with measured values. The amplitude range which hydraulic mount features high damping coefficient was investigated. Secondary, the steady-state response analysis of rigid body supported by the hydraulic mounts was performed. The validity was confirmed by the excitation experiment.
